1Gig broadband only returning 500MB speed

[Eckethump63]

Hi

I've just upgraded my account to the 1Gig broadband only service and I'm dissapointed to see that the download rates or only marginally better than the 500MB I was on.  i.e returning from 450 to 550 on speedtests.

The upload as increased to the advertised 52Mbps.

Here's my logs if the help:

Cable Modem StatusItem Status CommentsChannel Overview Downstream Upstream

Cable Modem Status	Online	DOCSIS 3.1
Primary downstream channel	Locked	SC-QAM
DOCSIS 3.0 channels	31	4
DOCSIS 3.1 channels	1	0

3.0 Downstream channels

Channel Lock Status RxMER (dB) Pre RS Errors Post RS Errors

19	Locked	40.366287	0	0
1	Locked	40.366287	0	0
2	Locked	38.983261	0	0
3	Locked	40.366287	0	0
4	Locked	40.366287	0	0
5	Locked	40.366287	0	0
6	Locked	40.366287	0	0
7	Locked	40.366287	0	0
8	Locked	40.366287	0	0
9	Locked	40.366287	0	0
10	Locked	38.983261	0	0
11	Locked	40.366287	0	0
12	Locked	40.366287	0	0
13	Locked	40.366287	0	0
14	Locked	40.366287	0	0
15	Locked	40.946209	0	0
16	Locked	40.366287	0	0
17	Locked	40.366287	0	0
18	Locked	40.366287	0	0
20	Locked	40.946209	0	0
21	Locked	40.946209	0	0
22	Locked	40.946209	0	0
23	Locked	40.366287	0	0
24	Locked	38.983261	0	0
25	Locked	38.983261	0	0
26	Locked	40.366287	0	0
27	Locked	38.983261	0	0
28	Locked	40.366287	0	0
29	Locked	40.366287	0	0
30	Locked	38.983261	0	0
31	Locked	38.983261	0	0

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)

159

96

4K

1880

QAM4096

392

3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

159

Locked

42

9.1

17222460

0

[Eckethump63]

Here's the power logs

To me my power levels look a bit high:

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

19	283000000	10.4	40.4	QAM256	19
1	139000000	12.2	40.4	QAM256	1
2	147000000	11.8	39	QAM256	2
3	155000000	11.4	40.4	QAM256	3
4	163000000	10.9	40.4	QAM256	4
5	171000000	10.9	40.4	QAM256	5
6	179000000	10.6	40.4	QAM256	6
7	187000000	10.6	40.4	QAM256	7
8	195000000	10.5	40.4	QAM256	8
9	203000000	10.3	40.4	QAM256	9
10	211000000	10.3	39	QAM256	10
11	219000000	10.6	40.4	QAM256	11
12	227000000	10.4	40.4	QAM256	12
13	235000000	10.4	40.4	QAM256	13
14	243000000	10.3	40.4	QAM256	14
15	251000000	10	40.9	QAM256	15
16	259000000	10	40.4	QAM256	16
17	267000000	10.4	40.4	QAM256	17
18	275000000	10.3	40.4	QAM256	18
20	291000000	10.1	40.9	QAM256	20
21	299000000	9.1	40.9	QAM256	21
22	307000000	9.1	40.9	QAM256	22
23	315000000	9.3	40.4	QAM256	23
24	323000000	8.9	39	QAM256	24
25	331000000	9.2	39	QAM256	25
26	339000000	9.3	40.4	QAM256	26
27	347000000	8.6	39	QAM256	27
28	355000000	8.5	40.4	QAM256	28
29	363000000	8.9	40.4	QAM256	29
30	371000000	8.5	39	QAM256	30
31	379000000	8.4	39	QAM256	31

[jbrennand]

Any other connection issues other than speedtest results?

I am not familiar with the Hub4 - but if that were a Hub3 - I would say your down power levels are too high. 10dBmV is the recommended maximum.

Post up the Upstream data and network logs as well.

[Eckethump63]

Upstream logs as requested:

3.0 Upstream channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

1	25800000	38.5	5120 KSym/sec	64QAM	4
2	32600000	39.3	5120 KSym/sec	64QAM	3
3	39400000	39.3	5120 KSym/sec	64QAM	2
4	46200000	39.3	5120 KSym/sec	64QAM	1

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	US_TYPE_STDMA	0	0	0	0
2	US_TYPE_STDMA	0	0	0	0
3	US_TYPE_STDMA	0	0	0	0
4	US_TYPE_STDMA	0	0	0	0

the last few days logs:

Sun 24/10/2021 10:41:41	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 25/10/2021 10:58:31	3	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 25/10/2021 10:59:40	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 25/10/2021 10:59:43	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 27/10/2021 11:03:08	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MA

[legacy1]

boot PC in safe mode with networking and hub in modem mode.

[Eckethump63]

well putting the hub into modem mode completely killed it.  It won't reboot.  It won't reset its just a coffee jar shaped brick with a solid white light on it.  I've got an engineer booked but having to use my friends inet to post this.  So much for the work I have to complete tomorrow.  I should state that yes i pressed the reset button for 60sec.,

[legacy1]

You likely have not killed by modem mode with the hub powered on for 5min press the reset in as its powered for 60sec.

or should the hub be in modem mode power off the hub for 2min connect only a PC to the hub and unplug repulg the ethernet cable till you get a IP or you can put a IP on your PC like 192.168.100.2 with 255.255.255.0 subnet and then connect to the hub by 192.168.100.1

[Eckethump63]

Tried both sugestions and no activity at all.  As I said the hub light is constant from power on ie white ring.  There's no activity on ethernet ports either.   Plugged a laptop in and I get unconnected cable, which I admit may be a failure with laptop but until I can borrow another laptop tomorrow I can't do anything differnet.

[Eckethump63]

Update

Just had an engineer visit he swapped the hub confirmed the other one was bricked.  But speed still only 550Mb asked if there's anything he can do as this was the speed I was getting on, cheaper, M500.  He said NO.

Is this true that this is going to be my limit if so I demand to be put back to M500 for the price I was paying (£46/month) instead of paying £62/month for no gain.

Not an happy customer.

[Alex_RM]

Hi Eckethump63,

Sorry to hear you're still experiencing some slow speeds,

Can you confirm if this is over a wired or wireless connection? 

Alex_Rm